Two years later, at a raucous trial in which Ms. Kimes was scolded by a judge for passing notes to reporters, she was found guilty with her son of killing Ms. Silverman in an elaborate plot that involved cheap disguises, false identities, tapped telephones, forged deeds, a stolen credit card and at least three fake offers of Caribbean vacations.

The authorities said that Kenneth Kimes had strangled Ms. Silverman, and that the mother and son then disposed of the body in garbage bags. Her body was never found. In a search of their car and luggage, the police found guns, plastic handcuffs, fright masks, tapes of Ms. Silverman's telephone conversations and a fake deed to the Silverman home.